Railway post office

Demo of the mail hook pulling a mail bag on Chicago, Burlington and Quincy Railroad #1923 at the Illinois Railway Museum.

An interior view of Great Northern Railway #42, a restored RPO on display at the California State Railroad Museum in Sacramento.

A working RPO on the Chicago and North Western in 1965.

In the United States, a railway post office, commonly abbreviated as RPO, was a railroad car that was normally operated in passenger service as a means to sort mail en route, in order to speed delivery. The RPO was staffed by highly trained Railway Mail Service postal clerks, and was off-limits to the passengers on the train. In the UK, the equivalent term was Travelling Post Office (TPO).

单词	Railway post office
释义	Railway post office 英语百科 Railway post office In the United States, a railway post office, commonly abbreviated as RPO, was a railroad car that was normally operated in passenger service as a means to sort mail en route, in order to speed delivery. The RPO was staffed by highly trained Railway Mail Service postal clerks, and was off-limits to the passengers on the train. In the UK, the equivalent term was Travelling Post Office (TPO).
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